package com.atguigu.lease.web.app.interceptor;

import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.context.LoginUserContext;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

/**
 * @author kk
 * #date 2024/6/23 19:54
 */
//Authentication  认证
@Component
public class AuthenticationInterceptor implements HandlerInterceptor {  //
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        //获取token
        String access_token = request.getHeader("access_token");

        if (access_token == null){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_AUTH);
        }else {
            Claims claims = JwtUtil.parseToken(access_token);

            Long userId = claims.get("userId", Long.class);
            String phone = claims.get("userName", String.class);
            //拦截器放行数据到请求的下一步
            LoginUserContext.setUser(new LoginUser(userId,phone));

        }

        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        LoginUserContext.removeUser();  //删除本地线程用户对象
    }
}
